Andreas,
You are mentioning that you have no special hardware or proprietary
software. Are you sure? Recently I investigated several ways to
communicate with the PLC. I even met with Siemens sales reps.
As far as I know write access requires
1/ Modbus card
2/ and/or Proprietary libraries/interface software
Could you describe in more details you setup?
Thanks,
--
Emmanuel
On Fri, 2006-11-10 at 18:40 +0100, Luedeke Andreas wrote:
> The s7plc driver is used for the Linacs of Diamond (VME IOC) and ASP (PC
> IOC), too.
> In both cases read and write access of about 10Hz of a few hundred PVs
> per PLC.
> No problems reported so far.
>
> No special hardware or proprietary software required.
>
> Andreas
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